Type of Chemical Reactions
- Definition- A reaction between two or more substances react to form a single substances
- Equation- A + B ----> AB
- Examples- Carbonic acid, as in soft drinks, decomposes when it is formed. NH4OH(aq) → NH3(g) + H2O(l)
- Example- A reaction in which a compound breaks down into two or more simpler substances
- Equation- AB ----> A + B
- Examples- Making cement. CaCO3 + (heat) --> CaO + CO2
- Definition- A reaction in which one element takes the place of another element in a compound.
- Equation- A + BC ----> B + AC
- Examples- Baking soda reacts with acidic substances in cake batter. NaHCO3 + HA --> Na A + H(HCO3)
- Definition- Two different compounds exchange positive ions to form two new compounds.
- Equation- AB + CD ----> AD + CB
- Examples- Marble statues attacked by acid rain. CaCO3 + 2HNO3 ----> Ca(NO3)2 + H2O + CO2
- Definition- A substance reacts rapidly with oxygen, often producing heat and light.
- Equation- CH4 + 2O2 ----> CO2 + 2H2O
- Examples- Burning some coal. C + O2 --> CO2